Window locking assembly



Dec. 25, 1956 D, BAKER 2,775,001

WINDOW LOCKING ASSEMBLY Filed May 5, 195:5 2 Sheets-Sheet l FLE- 1..

D. L. BAKER WINDOW LOCKING ASSEMBLY Dec. 25, 1956 Filed May 5, 1953 :-l E- E United States Patent O WINDOW LOCKING ASSEMBLY Donald L. Baker, Branford, Coun., assignor to Carrier Corporation, Syracuse, N. Y., a corporation of Delaware Application May 5, 1953, Serial No. 353,070

3 Claims. (Cl. 20-52) This invention relates to a window locking assembly and, more particularly, to a device for connecting two slidable sashes together when at least one of the sashes is moved from its closed position to prevent further movement of the sashes with respect to each other.

Most slidable window assemblies are provided with means for locking the two sashes together when the sashes are in closed position. This locking means usually consists of a stationary member on the lowerrail of the upper sash and a movable member on thel upper rail of the lower sash. However, when a Ventilating unit is installed in the window, there is no means for locking the two sashes together since the stationary member and the movable member are nolonger in the same horizontal plane.

When installing a Ventilating unit in the window frame by moving one of the sashes from its closed position, there exists not only the problem of locking the sashes in place to prevent unauthorized entrance but there also exists the problem of providing a proper seal between the Window assembly and the Ventilating unit.

The prior method of providing this seal has been to place a gasket between the Ventilating unit and the rail of the sash, then to nail the sash so that pressure is exerted on the seal and the Ventilating unit by the window. This, of course, not only provides a proper seal but also locks the movable sash in position. lf it is desired to lock the stationary sash, it must also be nailed. It will be noted that this results in marring the woodwork of the window and is time-consuming. This also results in a time-consuming process in removing the Ventilating unit from the window since the nails must be removed before the ventilating unit can be removed.

The present invention satisfactorily eliminates these problems by providing a simplified locking device. This device eliminates the use of nails and permits a much quicker assembly of a Ventilating unit in a window. The device valso provides a better seal since a uniform pressure is exerted on the gasket. Of course, it will be understood that this device also permits the removal of the Ventilating unit from the window in a much shorter time.

The chief object of this invention is to provide a locking assembly for slidable sashes when one of the sashes is moved from its closed position.

An object of the invention is to provide a locking assembly for slidable sashes in which a Ventilating unit is disposed.

A further object of this invention is to provide an vassembly for holding a Ventilating unit in a window frame containing slidable sashes. Other objects of my invention will be readily perceived from the following description.

This invention relates to a Window arrangement including in combination, a frame, an upper sash movable downwardly in the frame, a lower sash movable upwardly in the frame, each of the sashes including an upper rail and a lower rail, at least one of sai-d sashes being disposed in an open position, and means extending between a rail 2,775,001 Patented Dec. 25, 1956 ICC of the open sash and a rail of the other sash to prevent further movement of said sashes.

The attached drawings illustrate a preferred embodiment of my invention, in which:

Figure l is a perspective View of the locking device of the present invention;

Figure 2 is a View in elevation of a window in which the locking assembly of the present invention is disposed; and

Figure 3 is a sectional View of vthe locking assembly and the slidable sashes.

Referring to the drawings and particularly to Figure 1, there is shown the locking or connecting device 2 of the present invention. This device includes a rod 3 with one end of the rod being bent to form a U-shaped hook 4. The other end of this rod, that is, the shank portion is provided with fastening means such as threads 5 for a purpose to be described hereinafter. v

Slidable bracket 6 is adapted to be disposed on the rod. This bracket includes a portion y7 which has an opening therein that is adapted to pass over the rod. A Isecond portion 3 of the bracket is spaced from the portion 7 and similarly has an opening that is adapted to slide over the rod. These two portions are connected together by a third portion 9. As clearly shown in Figure 1, this portion 9 is substantially parallel to the rod 3 when the bracket is mounted onthe rod. Extending from the second portion 8 of the bracket 6 is angular portion 10. A Wing nut 11 is threaded so that it is adapted to mate with threads 5 of the rod 3. This wing nut permits the slidable bracket to be positioned at a plurality of points along the rod 3 for a reason to be described hereinafter.

The window frame 14 (see Figure 2) includes a lower slidable sash 15 and an upper slidable sash 16. The lower sash has a lower `rail 17 and an upper rail 18. Similarly, the upper sash 16 has a lower rail 19 and an upper rail 20. In Figure 2, the lower sash 15 is shown moved from its closed position to permit the insertion of a Ventilating unit 21 between the lower rail 17 of the lower sash and the frame 14. The term Ventilating unit is`used to designate a unit employing a fan to pass air therethrough, the air being drawn from the exterior of the building structure or. the room in which the unit is placed, and cooled or heated, if desired. Wings 22 are preferably employed to close the space between the frame 14 and the sides of the Ventilating unit 21 though other suitable means may be employed, if desired. A rubber gasket 23 is used to provide a seal between the Ventilating unitand the lower rail 17 of lower window sash 15.

While the Ventilating unit has been shown disposed only below the lower sash, it will be understood that the Ventilating unit could be disposed between the upper raill 20 of upper sash 16 and the frame 14. It also-will be understood that Ventilating units could be disposed below the lower sash and above the upper sash at the same time.

A stationary member 26 is shown disposed on the upper surface of the lower rail 19 of upper sash 16. This member is normally employed to cooperate with a movable member, not shown, on the upper rail 18 of lower sash 15 to permit locking of the two sashes together when both sashes are in closed position. The stationary member 26, as shown in Figure 3, includes a base that is attached to the upper surface of lower rail 19 of upper sash 16. A curved portion extends upwardly from one end of the base to provide a space between the curved portion and the base.

Referring particularly to Figure 3, the upper rail 18 of lower sash 15 is vshown disposed above lower rail 19 of upper sash 16. This, of course, permits insertion of the Ventilating unit 21 below the lower rail 17 of lower sash 15. At this time, the U-shaped hook 4 of rod 3 is placed in the stationary member 26, as clearly shown in Figure 3. The slidable bracket 6 is then slid down on the rod3 until the-angular portion 10 contacts the upper surfaceofnpperraill.. Thiscontact of .theangularportion with upper rail 18 prevents further downward movement of the bracket 6. The wing nut 11 is then threaded downfonto :the top:ofz,portion.9of bracket 6. Aszthis Wing nut is tightened, thefhookimember 4 of. rod 3 tends to-exert ani-upwardv forcefon upper sash 16by means of stationary member 26. The .uppersash is. preventedfrom movingrsinceit isragainst the. frame 14 and. this results in the force being transmittedto the .lower sash 1S by means .of-the angular;portion lil-of the bracket 6. The tighterthel wingnunthe ,greater the force on the lower sash 1,15.; This provides; a vmoresatisfactory seal ybetween the sash and the Ventilating unit since V:this results in a continuousuniform force on thegasket.

While the stationary member 26:has= been set forth as beingmpartof the; standard window locking device for closedfwindows, itzwill be understood thatthis member couldibe aseparate memberpositionedon another portiontof the ,lower rail of the upper sash. The only ref quirement of the stationary member is'lthat it be formed to. permitzinsertion of. the hook member 4 -of rod 3 in a p ortionfthereo. It also will be understood that the stationary membercould be positioned ,on the upper rail oftheglowerrsash., lfL this were done, the slidable bracket 6,2.-ofzcourse, would be incontact with the lower rail 19 of thegupper sash 16.v

Preferably, portion 7 of the bracket 6 bears against therside.' of` the rail `.18. to'align the locking device. It also willgfbe understood that, other suitable means could be employed instead of the wing nut 11, if desired.

The presentinvention ,has the: advantage of permitting azquick assemblyor disassembly of a Ventilating unit in `awindow frame `containing slidable sashes. The present inventionhas the, advantage of permitting. the twoslidable sashesgto .bereadiIy locked together when at least one of the:.sashes has been moved frornits closed position. Another-fadvantage is;.the provision of a more satisfactory seaLbetween the window and the Ventilating unit so that air; and rain are: prevented .from entering the room.

WhileI have described a preferred embodiment of my invention,` it, `will be understood my invention is not limit-,edlv thereto since it may be otherwise embodied within the scope ,of .the following claims.

I claimr;

1. Inicombinationwitha window assembly including a frame,l an upper sash and :a lower sash, each sash being provided withupper and lower rails, a Ventilating unit disposed Lin the frame with one side thereof in engagement with va rail 4of one of thesashes, said sash having been displacedto accommodate-the Ventilating unit, means for preventing relative movement of the sashes, said. means including-astationary member mounted on the lower raihoi the upper sash,y an elongated member having a hookedvendportion for. connection with said stationary member, and ajthreaded shank portion extending up from the hook portion, a bracket slidably mounted on the shank portion of the elongated member, said bracket including a irst portion provided with an opening therein, a second portion spaced from the first portion also provided with an opening the center of which lies substantially in the same plane as the center of the opening in the first portion, a connecting portion dispose-d substantially par allel to the elongated member when the bracket is assembled about the rod, said bracket-inst portion terminating in a free edge for engaging the side of the upper rail of the lower sash positioned on the opposite side of the elongated member from the bracket connecting portion, said bracket second portion being provided with an end section inclined toward the bracket first portion and terminatingin an edge-adapted to engage the top side of the sash rail in contact with the edge of the bracket first portion, and an internally threaded fastening element assembled on the elongated member in Contact with the second portion of the bracket to prevent separation of said bracket and elongated member.

2. Ak windowl securing device comprising an elongated rodhaving a hooked end portion adapted to be connected to aisash rail, and a threaded shank portion extending therefrom; a substantially U-shaped bracket having aligned openings in opposed legs thereof for the accommodation of the shank portion of the elongated rod, one of said legs being provided with an extension inclined in the direction of the opposed leg, said extension terminating in an edge adapted to cooperate with the edge of said opposed leg to'embra'ce adjacent sides of a sash rail; and an internally threaded member threadably mounted on the shank to prevent separation of said bracket and rod members.

3. A window securing device for preventing relative movement between ,sashes of'a window assembly, one sash .of which has been displaced comprising an elongated rod having a hooked .end portion adapted to be connected to a sash rail, and a threaded shank portion extending therefrom;. a bracket slidably mounted on the shank portion of the rod, said bracket including spaced sashrail engaging portions, laterally offset from the rod tomaintain the latter member substantially parallel to the sashes; and an internally threaded member threadably mounted on the shank to prevent separation of said bracket and rod members.

References Cited inthe le of this patent UNITED STATES PATENTS 424,895 McDonald Apr. 1, 1890 1,239,802 Macbeth Sept. 11, 1917 1,586,519 CraigA June 1, 1926 1,685,027 Iaroch Sept. 18, 1928 1,846,427 Kuhrt Feb. 23, 1932 2,258,617 Knauft Oct. 14, 1941 FOREIGN PATENTS 622,090 Germany Oct. 31, 1935 

